{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell type", "protein", "cell line", "RNA", "DNA"], "input": "U937 cells express both type I and type II IFN receptors , but only IFN-alpha is capable of inducing antiviral protection in these cells."}
{"cell type": [], "protein": ["type I", "type I and type II IFN receptors", "type II IFN receptors", "IFN-alpha"], "cell line": ["U937 cells"], "RNA": [], "DNA": []}